| Term | Definition |
|---|
| What is the difference between one time zone and the next? | The time in each zone is one hour earlier than the time in the zone to its east |
| International Date Line | line running from north to south through the Pacific Ocean where the date changes from one day to the next |
| standard time zones | one of the 24 regions of the earth in which noon is set as the time when the sun is highest over the center of the region |
| why do we have time zones? | because the sun's movement from east to west, the sun appears highest over different locations at different times |
| parallels | any circle that runs east and west around the earth parallel to the equator |
| meridians | semicircles reaching around the earth from pole to pole |
| how much does earth rotate on its axis? what does this create? | 15 degrees per hour; time zones |
| Tropic of Cancer | 23 1/2 degrees north; the sun hits the Earth at about 90 degrees |
| Tropic of Capricorn | 23 1/2 degrees south; sun hits the earth at about 90 degrees |
| What is another name for longitude? | meridians |
| what is another name for latitude? | parallels |
| Latitude measures up to what degrees? | 90 degrees |
| Longitude measures up to what degrees? | 180 degrees |
| What doe the equator do? | it divides the Earth into the northern and southern hemisphere |
| prime meridian | the meridian that passes through Greenwich, England designated at 0 degrees |
| longitude | the angular distance measured in degrees, east or west of the prime meridian |
| latitude | the angular distance north or south of the equator |
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